Lock.



C. SCHOENFELD.

LOCK.

APPLICATION FILED FEB. 7. 1914.

l 1 77,360. Patented Mar. 28, 1916.

2 SHEETS-SHEET 2.

CHARLES SCHOENFELD, 0F CANTON', OHIO.

LOCK.

Specification of Letters Patent.

Patented Mar. 2s, 1916.

Application filed February 7, 1914. Serial No. 817,093.

T0 all whom it may concern Be it known that I, CHARLES SCHOENFELD, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio, have invented a certain new and useful Lock, of which the following is a specification.

My invention relates to improvements in locks, and more especially the class of locks used upon outer doors of dwellings and also doors of state rooms and in such other'places where it may be desirable to actuate the lock from the inside without the use of a key.

A further object is to provide a. lock of the lclass mentioned by means of which the door may be close-d and locked without the use of a key, making what is known as a spring lock.

A still further object is to provide means whereby when the door is closed and locked it can only be unlocked and opened by the use ofa proper key from the outside.

These objects together with other objects g readily apparent to those skilled in the art,

I attain by the construction illustrated inthe accompanying drawings, although my 1nvention may be embodied in a variety of other mechanical forms, the construction Y illustrated being chosen by way of example.

In the accompanying. drawings: Figure l is a perspective view from the inner side of the lock casing, knob and knob spindles. Fig. 2 lis a detached face view of the strike plate. Fig. 3 is a perspective view from the outer side of the lock casing and one spindle.

Fig. 4 is a View of the interior of the lock casing from the outer side thereof, showing the parts in the position assumed when the door is swung away from the jamb and the night latch releasing mechanism is in inoperative position. Fig. 5 is a similar view with the night latch releasing mechanism` still in operative position, the main latch and auxiliary latch being retracted in passing over the strike plate before the mortise thereof has been reached. Fig. 6 is a similar view showing the main latch extended into the mortise of the strike plate and the tumblers of the lock dropped into locked position. Fig. 7 is a similar view except that the night latch releasing mechanism has been actuated to throw the tumblers into the unlocked condition. Fig. 8 is a detached, fragmentary View in perspective showing a portion of the locking bolt and its actuating lever or dog. Fig. 9 is a detached perspective view of the night latch releasing dog and spindle arm. Fig. l0 is a sectional view taken on line 1010, Fig. 6.

Similar numerals of reference indicate corresponding parts in all the figures of the drawings.

In the accompanying drawings, the casing l is of the usual form and may be provided with the usual screw threaded apertures 2 to accommodate the screws 3 for attaching the usual detachable plate 4 thereto. These parts are common and well known andwithin themselves do not di'er from corresponding parts of a standard lock. The locking bolt 5 is provided with the beveled head or extension 6 adapted to project through the aperture 7'formed in the keeper or strike plate 8 and into the mortise 9 when the door is 4in closed position. The bolt 5 is formed ofa length to correspond substantially with the width of the door casing l, reference beingV had to the usual reciprocating movef ment of said locking bolt. The inner end of the locking bolt 5 is provided with` the elongated slot 10, through which elongated slot is located the pin or bar 1l, which pin or bar is held in fixed relationship with reference to the lock casing.

Upon the pin 11 are located a seriesk of tumblers 12, said tumblers being pivotally connected upon the pin or bar l1. The tumblers12 are preferably arranged so that the locking bolt 5 is located intermediate a series of tumblers as best illustrated in Fig. 10.V

However, the arrangement as to the location of thetumblers may be varied without departing from the spirit of my invention.V

For the purpose ofholding the tumblers 12 in proper spaced relationship with referencel to each other, a series of washers 13 are employed, which washers are strung upon the pin or bar 1l. For the purpose of prop-V .erly spacing the tumblers through their entire length their faces are provided with a series of beads or projections 14 which are preferably formed bv punching the metal in such a manner that the beads will be formed. Y

spindle 17 andthe actuating arm 18, said actuating arm being located in the recess 19 formed in the locking bolt 5. Vhen the tumblers 12 are in the position shown in Figs. 4, 5 and 7 and when the locking bolt 5 is moved ,inward thevlianges 20, which. are .secured or formed integral with the locking bolt 5, pass into the recesses 15 as best illustrated in Fig. 5, but when the tumblers are in the position shown inFig.- 6 the locking bolt will be held against inward movement by reason of the flanges 2O striking against vthe ends of the tumblers 12 as illustrated in Fig. 6.

Eelow the tumblers 12 and the locking bolt is located the auxiliary bolt 21, which night latch is provided with the beveled latch portion or part 22, which is adapted to be extended through the casing plate and to strike and press against the strikeplate 8. For the purpose of allowing for a reciprocating Amovement of the auxiliary bolt 21 it is provided with the elongatedv slot 23, throughwhich slot is located the pin or post 24, and it will be understood that when Y the auxiliary bolt 21 is in its extended position as illustrated in Fig. 4, the upward eX- tended and beveled head 24a,- which is connected to or formed integral with the auxiliaryl bolt 21, will hold the tumblers 12 in their uppermost or 4unlocked positions. For the purpose of automatically moving the auxiliary bolt 21 outward when the door is opened, the spring 25 vis provided, one end of said spring being attached to the tang 26 or its equivalent and the opposite end being fixed to the pin 27 or its equivalent. In order that the-night latch 21 maylift the tumblers 12 during its outward movement the tumblers'12 are provided with the inclined edges 28and against which the upper beveled end of the head 24a strikes, but when the parts are inthe position shown in Fig. 4 and the auxiliary bolt 21 is pushed',

inward by the closing of the door the tumlers 12 will drop into the position shown in Fig. 6, thereby locking the locking bolt 5 against `inward movement by reason of the flanges 20'com1ng against the outer ends of the tumblers 12 and whenln this condi'- tion the locking bolt cannot be actuated until- `the tumblers have been elevated by means of a key,-which key acts to lift the tumblers in the usual manner and after they have been so lifted the locking bolt is free to be moved 'Y bythe knob and spindle 16 and 17 this movement of. the locking bolt being common.

For the purpose of automatically moving the locking bolt outward either when the door is opened or to thrust the locking boltinto the mortise 9 when 'the door is closed, the swinging arm 29 is provided, which arm is pivotally connected to the casing by means of the pin 30. Thearm 29'is provided with y the tang 31, which tangpresses against the shoulder 32 formed upon the locking bolt 5 and forthe purpose ot swingingthe armV 29 in the direction to move the locking bolt: outward the spring 33 'is provided, which spring is located around thebar 34, which bar slides back and forth through a suitable` aperture formed in the plate 35 or itsv equivalent. The bar 34 is provided withthea head 36 which is located against :the inner face of the swinging arm 29 and a portion of the bar 34 is extended into the elongated slot 37.` The purpose of providing the elongated slot 37 is -to allow the swinging move` ment of the arm 29. y

In some instances it may not be desirable to have the tumblers 12 drop eachand everyl time the door is Vclosed or in other words to so.V arrange the locking bolt that 'it can be actuatedeitherfrom'the inside knob 16 or the outside knob 38 withoutfthe luse of i a key and when it is desired toiset the-varil actuated by either `the inside knob 16 or the outside knob 38 the arm 39y is broughtintoy the position illustrated in Fig. 7'by means of the llower inner knobf40 and thespindle` ous parts so thatthe locking bolt can be 41 to whichspindle is attached the arm 39 and by themovement .ofthe arm 39 intoithe 1 position shown in Fig; 47 'it will rock thepiv-y oted dog 42, moving'the upper end of said dog toward theV inner lends'of the tumblers 12 and bring the-.top'or `upperend of said dog 42 against the'shoulders 43 and hold said tumblers against pivotal movement and in their elevated positions, at which-time the locking bolt 5 canbe actuated by either the inner `or outer knobs-in the'same manner as an ordinary day lock, without any reference to the night latch.; In `order to insurethe- ,return movement of.y the dog 42 when thel Yarm 39 is elevatedy or .brought into the position illustrated in Figs. 4 and- 6 the spring 44 is provided, whichl spring is of theusual` construction` and is connected at `one end to` the tang 45 andthe lopposite endflocated]k against the casing 1.

It willbe understood that; by the peculiar arrangement of the various parts of the lock proper all. that is necessary to change the l lock from what might be termed a day Alock to a night lock is to actuate the knob 40'in the direction to lift or lower the arm 391as desired.

Having fully described my inventionwhat I claim as new and desire to secure by Let ters Patent, is Y 1. In a lock of the class described, -the combination of a casing, a llocking bolt fprovided with a beveled end and a shoulder,

said locking bolt adapted for reciprocating movement, a knobspindle havingilocatedv thereon an actuating arm, a serieso pivoted tumblers, said tumblers provided with proj ections adapted to space the tumblers apart, an auxiliary bolt slidably mounted in the casing provided with an upwardly extended beveled head adapted for contact with the tumblers, a dog pivoted intermediate its ends and its top or upper end adapted for Contact with the tumblers below their pivotal points, a knob spindle provided with an arm adapted for Contact with the dog and means carried by the looking bolt adapted to^lock said locking bolt against inward movement.

2. In a lock of the class described, the

combination of a casing, a locking bolt provided with a beveled end and a shoulder, said locking bolt adapted for reciprocating movement, a lmob spindle having located thereon an actuating arm, a series of piv- Copies of this patent may be obtained for oted tumblers, an auxiliary bolt slidably mounted in the casing provided with an upward extended beveled head adapted for Contact with the tumblers, a dog pivoted intermediate its ends and its top or upper end adapted for contact with the tumblers below their pivotal points, a knob spindle provided with an arm adapted for contact with the dog and means carried by the locking bolt adapted to lock said locking bolt against inward movement.

In testimony that I claim the above, I have hereunto subscribed my name in the presence of two witnesses.

CHARLES SCHOENFELD.

Witnesses:

SYLVIA BORON, F. W. BOND.

fle cents each, by addressing the Commissioner of Patents Washington, D. C. 

